A Si bipolar 1.4 GHz time space switch LSI for B-ISDN

The advanced active pull-down circuitry and the layout design technique to realize a high-speed, low-power LSI have been developed. A 32-channel broadband switch LSI operating at a 1.4-GHz clock-rate has been built to serve as a key component for B-ISDN systems. The total chip power dissipation is reduced by 60% compared with conventional ECL chips while avoiding the effect of cross talk noise. The chip area is reduced by 70% compared with a common standard cell structure. >